John Melloy is a Senior Editor for CNBC.com, covering investing, markets and the economy. He was the executive producer of CNBC's "Fast Money" and the "Fast Money Halftime Report" until October 2013. He was previously chief executive officer of StockTwits.com before returning to CNBC. He began his career at Bloomberg News in 1999 and was team leader of U.S. stock market coverage there before leaving for CNBC in 2006 to help launch "Fast Money."
The tariff imposed on Canada Monday evening was set to ripple through related futures, currency and equity markets Tuesday.
The days of dollar strength appear to be over for now, creating a boost for profits of global companies.
If history is any guide, the rally this week may have another 2 percent to go for the S&P 500 with bank stocks leading the way.
The reclusive hedge fund legend is reportedly getting worried about the stock market's value relative to the U.S. economy.
Netflix execs may have inadvertently revealed that their subscriber guidance for this quarter is too conservative, according to analysts.
When Goldman Sachs has a bad month like it is now, it's rare for the market to be higher.
Josh Brown has a theory that tax-related selling is behind the market's recent struggles. History shows he may be right.
The bond guru believes a global slowdown in productivity will hurt GDP growth and reveal stocks and high yield bonds as overvalued.
The S&P 500's close below its 50-day moving average could signify further weakness over the next few weeks, even months, history shows.
The US dollar index dropped suddenly as President Trump's comments to the Wall Street Journal unnerved traders.